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dezoksy [38]
4 years ago
14

You isolate cells from a tumor and study them. You observe that the cells continue dividing, even when DNA is damaged, when the

cells become crowded, or even when nutrients run low. These observations lead you to suspect that the cells _____.
Biology
1 answer:
melomori [17]4 years ago
3 0

Answer:

contain a mutated tumor-suppressor gene.

Explanation:

  • A tumor suppressor gene performs the function of regulating the proper division of the cells as well as regulating replication.

The tumor suppressor genes perform the following functions :

  1. Maintain the stability of the genome.
  2. Regulate cell growth.
  3. Regulates cell proliferation rate.
  • Whenever the tumor suppressor genes get mutated it would either result in a loss of its function or a reduction in its function which can lead to the abnormal growth of cells.
  • Hence, if the DNA is damaged, the cells become crowded and the nutrients run low then this indicates that the tumor suppressor genes are mutated.
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NAD and FAD work by loading and unloading _________ and _________ during energy transfers.
andrezito [222]

Answer:

Hydrogen and electrons

Explanation:

Nicotinamide adenine dinucleotide (NAD) and flavin adenine dinucleotide (FAD) serve as reducing power during energy transfers. One NAD+ accepts one hydrogen ions and two electrons and becomes reduced into NADH. Likewise, FAD accepts two hydrogen ions and two electrons and is reduced into FADH2. Oxidation of NADH and FADH2 into NAD+ and FAD respectively releases both hydrogen ions and electrons.  

For example, some of the energy of glucose released during glycolysis and Kreb's cycle is temporarily stored in the form of NADH and FADH2. Oxidation of NADH and FADH2 via electron transfer chain of mitochondria releases both electrons and hydrogen ions (protons). The protons are pumped across the inner mitochondrial membrane to generate the proton concentration gradient.  

7 0
3 years ago
The stage of a virus where it is activated to perform the function for which it was intended is referred to as the _________. se
gavmur [86]

Answer:

The correct option is B. The stage of a virus where it is activated to perform the function for which it was intended is referred to as the triggering phase.

Explanation:

The life cycle of a virus consists of the following stages:

The Dormant phase:

In this phase, the virus doesn't take any action. It just manages to get into the system or software.

The Propagation phase

In this phase, the virus makes copies of itself.

The Triggering Phase

In this phase, the virus performs its function.

The Execution Phase

In this phase, the destruction made by the virus can be seen.  

3 0
3 years ago
How does fitness differ from adaptation? *
RUDIKE [14]

Answer:

3.Fitness is related to whether an organism's adaptations result in more offspring

8 0
3 years ago
What is the term that refers to the breaking down of dead organisms and wastes done by prokaryotes?
Zigmanuir [339]
The answer is decomposers.

After the death of producers and consumers, decomposers (such as Actinobacteria, or other bacteria which are prokaryotes) eat that dead organisms and carbon, nitrogen, and other elements are released into the environment. It should be taken into consideration that eukaryotes (such as fungi) can be decomposers as well.

4 0
3 years ago
Hypothesis if plants are grown in soil containing worms then........<br> Because.......
Alex

Answer:

If plants grow in soil containing worms, then plant growth will be greater, because worms help decompose organic matter and distribute it through the soil in a form that plants can use

7 0
3 years ago
Read 2 more answers
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